Hugh Gourlay

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Hugh Gourlay

• Researcher in the Biological Control of Weeds

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Stem and root feeding weevil Apion onopordi
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Stem and root feeding weevil eggs
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Weevil larva in a thistle root
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Thistle flea beetle Altica carduorum
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Flea beetle larva
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Foliage feeding beetle Lema cyanella
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Foliage feeding beetle larva
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Gall fly Urophora carduii
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Galled thistle stems
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Thistle rust Puccinia punctiformis
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The Californian Thistle Action Group

• Chairperson Grant Catto
• Members John Labes, Keith Crothers, Deane
  Carson, Hugh Gourlay, Bruce Catto, Barry Allison,
  Kelvin Ross, Denis Horton
• Applying to MAF Sustainable Farming Fund for
  project funds to continue work on Apion onopordi
• Continuing host preference studies in field cages
  and surveying non-target plants in Europe
• Hope to import the stem and root weevil to
  complete host testing in 2006